from datetime import datetime as dt
from datetime import timezone

import pytest
from conftest import DB, Response
from hircine.db.models import Namespace


@pytest.fixture
def query_namespace(execute_id):
    query = """
    query namespace($id: Int!) {
        namespace(id: $id) {
            __typename
            ... on Namespace {
                id
                name
                sortName
            }
            ... on Error {
                message
            }
            ... on IDNotFoundError {
                id
            }
        }
    }
    """

    return execute_id(query)


@pytest.fixture
def query_namespaces(execute):
    query = """
    query namespaces {
        namespaces {
            __typename
            count
            edges {
                id
                name
            }
        }
    }
    """

    return execute(query)


@pytest.fixture
def add_namespace(execute_add):
    mutation = """
    mutation addNamespace($input: AddNamespaceInput!) {
        addNamespace(input: $input) {
            __typename
            ... on AddSuccess {
                id
            }
            ... on Error {
                message
            }
            ... on InvalidParameterError {
                parameter
            }
            ... on IDNotFoundError {
                id
            }
        }
    }
    """

    return execute_add(mutation)


@pytest.fixture
def update_namespaces(execute_update):
    mutation = """
    mutation updateNamespaces($ids: [Int!]!, $input: UpdateNamespaceInput!) {
        updateNamespaces(ids: $ids, input: $input) {
            __typename
            ... on Success {
                message
            }
            ... on Error {
                message
            }
            ... on IDNotFoundError {
                id
            }
            ... on InvalidParameterError {
                parameter
            }
        }
    }
    """  # noqa: E501

    return execute_update(mutation)


@pytest.fixture
def delete_namespaces(execute_delete):
    mutation = """
    mutation deleteNamespaces($ids: [Int!]!) {
        deleteNamespaces(ids: $ids) {
            __typename
            ... on Success {
                message
            }
            ... on Error {
                message
            }
            ... on IDNotFoundError {
                id
            }
        }
    }
    """

    return execute_delete(mutation)


@pytest.mark.anyio
async def test_query_namespace(query_namespace, gen_namespace):
    namespace = await DB.add(next(gen_namespace))

    response = Response(await query_namespace(namespace.id))
    response.assert_is("Namespace")

    assert response.id == namespace.id
    assert response.name == namespace.name
    assert response.sortName == namespace.sort_name


@pytest.mark.anyio
async def test_query_namespace_fails_not_found(query_namespace):
    response = Response(await query_namespace(1))
    response.assert_is("IDNotFoundError")
    assert response.id == 1
    assert response.message == "Namespace ID not found: '1'"


@pytest.mark.anyio
async def test_query_namespaces(query_namespaces, gen_namespace):
    namespaces = await DB.add_all(*gen_namespace)
    response = Response(await query_namespaces())
    response.assert_is("NamespaceFilterResult")

    assert response.count == len(namespaces)
    assert isinstance((response.edges), list)
    assert len(response.edges) == len(namespaces)

    edges = iter(response.edges)
    for namespace in sorted(namespaces, key=lambda a: a.name):
        edge = next(edges)
        assert edge["id"] == namespace.id
        assert edge["name"] == namespace.name


@pytest.mark.anyio
async def test_add_namespace(add_namespace):
    response = Response(await add_namespace({"name": "added", "sortName": "foo"}))
    response.assert_is("AddSuccess")

    namespace = await DB.get(Namespace, response.id)
    assert namespace is not None
    assert namespace.name == "added"
    assert namespace.sort_name == "foo"


@pytest.mark.anyio
async def test_add_namespace_fails_empty_parameter(add_namespace):
    response = Response(await add_namespace({"name": ""}))

    response.assert_is("InvalidParameterError")
    assert response.parameter == "name"
    assert response.message == "Invalid parameter 'name': cannot be empty"


@pytest.mark.anyio
async def test_add_namespace_fails_exists(add_namespace, gen_namespace):
    namespace = await DB.add(next(gen_namespace))

    response = Response(await add_namespace({"name": namespace.name}))
    response.assert_is("NameExistsError")
    assert response.message == "Another Namespace with this name exists"


@pytest.mark.anyio
async def test_delete_namespace(delete_namespaces, gen_namespace):
    namespace = await DB.add(next(gen_namespace))
    id = namespace.id

    response = Response(await delete_namespaces(id))
    response.assert_is("DeleteSuccess")

    namespace = await DB.get(Namespace, id)
    assert namespace is None


@pytest.mark.anyio
async def test_delete_namespace_not_found(delete_namespaces):
    response = Response(await delete_namespaces(1))

    response.assert_is("IDNotFoundError")
    assert response.id == 1
    assert response.message == "Namespace ID not found: '1'"


@pytest.mark.anyio
async def test_update_namespace(update_namespaces, gen_namespace):
    namespace = await DB.add(next(gen_namespace))

    input = {"name": "updated", "sortName": "foo"}
    response = Response(await update_namespaces(namespace.id, input))
    response.assert_is("UpdateSuccess")

    namespace = await DB.get(Namespace, namespace.id)
    assert namespace is not None
    assert namespace.name == "updated"
    assert namespace.sort_name == "foo"


@pytest.mark.anyio
async def test_update_namespace_fails_exists(update_namespaces, gen_namespace):
    first = await DB.add(next(gen_namespace))
    second = await DB.add(next(gen_namespace))

    response = Response(await update_namespaces(second.id, {"name": first.name}))
    response.assert_is("NameExistsError")
    assert response.message == "Another Namespace with this name exists"


@pytest.mark.anyio
async def test_update_namespace_fails_not_found(update_namespaces):
    response = Response(await update_namespaces(1, {"name": "updated"}))

    response.assert_is("IDNotFoundError")
    assert response.id == 1
    assert response.message == "Namespace ID not found: '1'"


@pytest.mark.anyio
async def test_update_namespaces_cannot_bulk_edit_name(
    update_namespaces, gen_namespace
):
    first = await DB.add(next(gen_namespace))
    second = await DB.add(next(gen_namespace))

    response = Response(
        await update_namespaces([first.id, second.id], {"name": "unique"})
    )
    response.assert_is("InvalidParameterError")


@pytest.mark.parametrize(
    "empty",
    [
        None,
        "",
    ],
    ids=[
        "none",
        "empty string",
    ],
)
@pytest.mark.anyio
async def test_update_namespace_fails_empty_parameter(
    update_namespaces, gen_namespace, empty
):
    namespace = await DB.add(next(gen_namespace))
    response = Response(await update_namespaces(namespace.id, {"name": empty}))

    response.assert_is("InvalidParameterError")
    assert response.parameter == "name"
    assert response.message == "Invalid parameter 'name': cannot be empty"


@pytest.mark.anyio
async def test_update_namespace_changes_updated_at(update_namespaces):
    original_namespace = Namespace(name="namespace")
    original_namespace.updated_at = dt(2023, 1, 1, tzinfo=timezone.utc)
    original_namespace = await DB.add(original_namespace)

    response = Response(
        await update_namespaces(original_namespace.id, {"name": "updated"})
    )
    response.assert_is("UpdateSuccess")

    namespace = await DB.get(Namespace, original_namespace.id)
    assert namespace.updated_at > original_namespace.updated_at